How to run a system command in Qt?

I have to run a system command in Qt. but I have to give an argument for that command.

for example opening gedit with a text file. l开发者_Go百科ike "gedit /home/oDx/Documents/a.txt"

but the path "/home/oDx/Documents/a.txt" will be in a variable like "docPath". so how can i do it!?

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QProcess process;
process.start("gedit", QStringList() << docPath);

the same as above

QProcess process;
process.start("gedit", QStringList() << "/home/oDx/Documents/a.txt");

Also, read this.

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QProcess::execute() may be helpful, although is deprecated:

QProcess::execute("gedit /home/oDx/Documents/a.txt");